冷加工变形对IF钢位错密度的影响
Influence of Cold Working Deformation on Dislocation Density of IF steel
摘 要
研究了冷加工变形对IF钢位错密度的影响.结果表明:IF钢经冷加工变形后,晶体内产生大量位错,随着变形量逐渐增高,位错密度增大,位错开始相互缠结在一起,当变形量达到20%以上时,晶体内出现纤维组织,并进一步转变成胞状亚晶粒.在一定变形量范围内,平均位错密度ρ与变形量A符合线性关系:ρ=2.205 17×1014+1.049 5×1016A.
冷加工
位错密度
变形量
IF steel
cold working
dislocation density
deformation amount
Abstract
The influence of cold working deformation on dislocation density of IF steel was studied.After the cold working deformation, there were amount of dislocations in IF steel.The dislocation density of IF steel increased with the increment of deformation extent.With the deformation up to 20%, the fibrous structure appeared in the crystal of IF steel, and became sub-grains.The relationship between dislocation density (ρ) and deformation amount (A) could be shown as the formula:ρ=2.205 17×1014+1.049 5×1016A.
中图分类号 TG3 O785+.7
所属栏目 试验与研究
基金项目
收稿日期 2014/11/12
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备注吉静(1985-),女,工程师,硕士.
引用该论文: JI Jing,WU Yi-wen,XU Ling-yun,WANG Biao,ZHU Zi-heng,WANG Hong-bin. Influence of Cold Working Deformation on Dislocation Density of IF steel[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2015, 51(3): 170～172
吉静,吴益文,徐凌云,王彪,朱子恒,汪宏斌. 冷加工变形对IF钢位错密度的影响[J]. 理化检验－物理分册, 2015, 51(3): 170～172
被引情况:
【1】徐凌云,吉静,黄菁,朱子恒,吴益文,汪宏斌, "固溶碳原子对IF钢Snoek内耗峰的影响",理化检验－物理分册 52, 156-158(2016)
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【4】张静江,王滨,奚建法,等.高锰低温钢晶体结构及位错形态研究[J].机械工程学报,1998,3(6):23-26.
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【10】PESICKA J, KUZEL R, DRONHOFER A, et al.The evolution of dislocation density during heat treatment and creep of tempered martensite ferritic steel[J].Acta Materialia, 2003(51):4847-4862.
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